CN214667326U - Motor stator temperature detection device - Google Patents
Motor stator temperature detection device Download PDFInfo
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- CN214667326U CN214667326U CN202120845014.9U CN202120845014U CN214667326U CN 214667326 U CN214667326 U CN 214667326U CN 202120845014 U CN202120845014 U CN 202120845014U CN 214667326 U CN214667326 U CN 214667326U
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- controller board
- stator winding
- stator
- temperature
- motor
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Abstract
The utility model discloses a motor stator temperature-detecting device, including thermodetector, stator winding, casing, the device still includes controller board, heat conduction piece, the controller board passes through the mounting to be fixed on the casing, and the heat conduction piece is located stator winding and contacts with controller board, and the thermodetector is located controller board and corresponds with stator winding's position. The utility model discloses a scheme is through installing the direct reading stator temperature data of the thermoscope on the controller board, and sensitivity is high, and the installation is simple, has reduced the equipment requirement to motor itself, has strengthened motor control system's reliability and stability.
Description
Technical Field
The utility model relates to a motor temperature detects the field, especially relates to a motor stator temperature-detecting device.
Background
With the increasing severity of environmental pollution and energy crisis, the development of low-emission, high-efficiency and low-cost electric vehicles becomes a hot field for automobile research at home and abroad. Among them, the motor is used as a core component of an electric vehicle, and is often required to have high torque and power density, so that the problem of overheating of the motor caused thereby is also more serious.
The stator temperature sensor is responsible for measuring the actual temperature of the stator windings of the electrical machine. Since a large current flows through the stator of the motor when the vehicle is running, the stator generates heat very severely, and the temperature rises very quickly. However, once the stator is over-heated, the whole motor control system is very dangerous, and the motor may be burnt out and cause serious accidents. Therefore, the stator temperature sensor is very important in the motor control system.
At present, the existing motor stator temperature detection is to measure by embedding a temperature sensor in a motor in advance or to arrange the sensor in a stator winding, and the methods have the problems of difficult installation, possible damage to a heat transfer path of the stator winding and large system maintenance workload.
SUMMERY OF THE UTILITY MODEL
The utility model provides a motor stator temperature-detecting device, the device simple structure, it is with low costs, simple to operate.
To achieve the above object, the utility model discloses a motor stator temperature detects, package
The device comprises a temperature detector, a stator winding and a shell, and further comprises a controller board and a heat conduction piece, wherein the controller board is fixed on the shell through a fixing piece, the heat conduction piece is located on the stator winding and is in contact with the controller board, and the temperature detector is located on the controller board and corresponds to the stator winding in position.
Specifically, the heat conducting member is heat conducting cotton or heat conducting silica gel.
Specifically, the height between the controller board and the stator winding is less than the thickness of the heat-conducting member.
Specifically, the thermometers are thermocouples, thermistors, bimetallic strips, or temperature sensors.
Specifically, the temperature detector is fixed on the controller board in a welding mode.
The other fixing mode is as follows: and a mounting hole is formed between the temperature detector and the controller board, and the temperature detector is fixedly mounted on the controller board in a threaded screwing mode.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses with stator temperature detector direct mount on controller board, through controller board direct reading stator temperature data, sensitivity is high, and the mounting means is simple, has reduced the equipment requirement to motor itself, has strengthened motor control system's reliability and stability.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a top view of the motor stator temperature detection device of the present invention;
fig. 2 is a front view of the motor stator temperature detection device of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be embodied in many other forms different from those described herein, and it will be apparent to those skilled in the art that similar modifications may be made without departing from the spirit of the invention, and it is therefore intended that the invention not be limited to the specific embodiments disclosed below.
In the present invention, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus.
As shown in fig. 1-2, a motor stator temperature detection device includes a temperature detector 1, a stator winding 3, a housing 5, a controller board 2, and a heat conduction member 6, where the controller board 2 is fixed on the housing through a fixing member 4, the heat conduction member 6 is located on the stator winding, the top of the heat conduction member 6 is in contact with the controller board 2, and the temperature detector 1 is located on the controller board 2 and corresponds to the stator winding 3, that is, the temperature detector corresponds to the stator winding up and down.
In this embodiment, the heat conducting member 6 is heat conducting cotton or heat conducting silica gel;
the housing 5 is preferably an aluminum shell;
the thermometer 1 is preferably a thermistor, although a thermocouple, a bimetallic strip or a temperature sensor may be selected for the thermometer.
In order to transfer the heat of the stator winding 3 to the controller board 2 more quickly, the distance between the controller board 2 and the stator winding 3 is smaller than the thickness of the heat-conducting cotton, so that the controller board is always pressed against the heat-conducting cotton, and the heat transfer is accelerated.
The thermistor is fixed on the controller board by welding, so that the temperature measured by the thermistor is closer to the temperature of the stator winding.
Of course, the thermometer may be fixed in another way: a mounting hole is formed in the controller board at a position (namely right above the stator winding) opposite to the stator winding, an internal thread is arranged in the mounting hole, a matched external thread is arranged on a shell of the temperature detector, and the temperature detector is fixedly mounted on the controller board in a threaded screwing-in mode.
The data processing device for inputting the data collected by the temperature detector to the controller board outputs specific numerical values, thereby providing guarantee for the work of the motor and reducing the danger of overhigh temperature of the motor.
Thus, it should be understood by those skilled in the art that while exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations and modifications can be made in accordance with the principles of the invention without departing from the spirit and scope of the invention, which is broadly defined and defined herein. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (6)
1. The utility model provides a motor stator temperature-detecting device, includes thermodetector, stator winding, casing, its characterized in that: the device also comprises a controller board and a heat conducting piece, wherein the controller board is fixed on the shell through a fixing piece, the heat conducting piece is positioned on the stator winding and is in contact with the controller board, and the temperature detector is positioned on the controller board and corresponds to the stator winding in position.
2. The motor stator temperature detection device according to claim 1, wherein: the heat conducting piece is heat conducting cotton or heat conducting silica gel.
3. The motor stator temperature detection device according to claim 1, wherein: the height between the controller board and the stator winding is less than the thickness of the heat conducting member.
4. The motor stator temperature detection device according to claim 1, wherein: the thermometers are thermocouples, thermistors, bimetallic strips or temperature sensors.
5. The motor stator temperature detection device according to claim 1, wherein: the temperature detector is fixed on the controller board in a welding mode.
6. The device as claimed in claim 1, wherein a mounting hole is formed between the temperature detector and the controller board, and the temperature detector is fixed on the controller board by screwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120845014.9U CN214667326U (en) | 2021-04-23 | 2021-04-23 | Motor stator temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120845014.9U CN214667326U (en) | 2021-04-23 | 2021-04-23 | Motor stator temperature detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214667326U true CN214667326U (en) | 2021-11-09 |
Family
ID=78466139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120845014.9U Active CN214667326U (en) | 2021-04-23 | 2021-04-23 | Motor stator temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214667326U (en) |
-
2021
- 2021-04-23 CN CN202120845014.9U patent/CN214667326U/en active Active
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